It happened in what felt like seconds. Toshiro punching Shido square in the jaw. The crown prince of the nation freeing Erina and her friends. The commotion in the castle felt like it was going to overtake them with the room calling out for their blood. Somehow Erina and the others make it into the hallway where the only echo is about twelve footsteps slamming against marble floor out of time. 

She wasn't sure when it stopped being castle and began to be a blue room where she had to stop herself from tripping over a couch. This wasn't the castle. In fact Erina didn't think it was anywhere familiar to her. Was it an enemy spell? Perhaps she had been teleported to a dungeon without her knowledge or her weapons, neither of which settled her adrenaline at all. She looks around trying to gather information while there aren't any hostiles in the room.